Means for cementing soles to shoes



Sept. 26, 1933. J. LIEBERMAN 1,928,258

7 MEANS FOR CEMENTING SOLES T0 SHOES Filed April 11, 1932 2 Sheets-Sheetl if /7 Joe A z'aa/v/vd/z ATTORNEY.

P 1933- J. LIEBERMAN 1,928,258

MEANS FOR CEMENTING SOLES TO SHOES Filed April 11, 1952 2 Sheets-Sheet 2INVENTOR.

I j! Z! BY 0e Jade/72m ATTORNEY.

Patented Sept. 26, 1933 MEANS Fon CEMENTING SOLES 'ro SHOES JoeLieberman, South Bend, Ind., assignor to Lieb Cement Process Company,Inc., South Bend, I nd., a corporation of Indiana Application April 11,1932. Serial No. 604,436

Claims. (01. 12-128) The invention relates to means for cementing solesto shoes, and particularly to means by which half soles may be cementedto old shoes to repair 5 them. a

The principal object of the invention is to provide a device of thischaracter by which the shoe will be completely lasted while the sole isbeing cemented whereby the shoe will retain its original shape and willhave the appearance of a new rather than of an old repaired shoe afterbeing half soled.

A further object is to provide a deviceof this character by which thesole, the instep and .the

upper of the shoe are lasted while the sole is being cemented to theshoe.

A further object is to provide a device of this character including aflexible last for the toe portion of the upper of a shoe whichaccommodates itself to the shape and size of the toe of the shoe beingrepaired.

A further object is to provide a device of this character having amember hinged to the sole lasting portion of the device and variablypositionable to last the instep portion. of the shoe,

while the same is being repaired. v

A further object is to provide a device of this charactercomprising alast and a flexible supporting member constructed to accommodate itself0 any desired exterior contour-of the sole of a s oe being lasted.

A further ob'ject'is to provide a device of this character comprising asole last, an upperlast, and a heating element carried by the upper sideof said sole last and positioned in spaced relation 7 to said upperlast.

A further object is to provide a device of this character comprising aheating member and a sole lasting member detachably carried thereby.

With the above and other objects in view, the

invention resides in the combination and arrangeby the upper ends ofsaid rods 13 and is prois provded with an air pocket 22 therein for pur-Figure 3 is a vertical transverse sectional view taken on line 3--3 ofFigure 2.

Figure 4 is a perspective view of my improved last.

Figure 5 is a longitudinal vertical sectional view of my improved upperlast.

Figure 6 is a view of the last in side elevation.

Figure 7 is a top plan view of the last.

Figure 8 is a transverse sectional view taken on line 8-8 of Figure 6.

Figure 9 is a perspect e view of the sole last.

Referring to the drawings, which illustrate the preferred embodiment ofmy invention, the numeral 10 designates a base on which are mounted apair of interconnected supporting blocks 11 having ears 12 projectingtherefrom. Vertical rods 13 are carried by the ears 12 and areadjustable relative thereto by nuts 14 bearing on said cars. Atransverse beam 15 is carried vided with bosses 16 positionedsubstantially centrally above the blocks 11 for the reception ofthreaded rods 17 each provided with an adjustinghandwheel 18. 8 Asupporting member comprising a flexible metal plate 19 carrying a rubberpad 20 is mounted on each block 11 and supports the sole and shankportions of a shoe 21. The rubber pad 20 r poses obe hereinafter setforth. The supporting member is flexible whereby the rear portionthereof may be bent'upwardly, as illustrated in Figure 2, at a desiredangle to support the shank of the shoe as well as the sole thereof.

A last is mounted in the shoe 21 and comprises a sole last plate 23which carries and has fixedly secured thereto a rearwardly upwardlyinclined member 24 terminating in a forwardly directed handle 25. Thehandle 25 has a recess 26 formed in the upper face thereof for thereception of the lower end of one of the threaded members'l'l by whichpressure may be applied to the last and sole.

A plate 27 is hinged at 28 to the rear end of sole last 23, whereby itmay be selectively angularly positioned relative to the plane of thesole last 23, and carries a pair of spaced arcuate members or flanges 29adjacent its, center and projecting upwardly therefrom. Arcuateguideways 30 are formed in the sides of member 24 for the reception ofarcuate members 29. A plurality of pairs of-aligned holes 31 are formedin the arcuate members 29, and the arcuate members are adapted to beselectively positioned to permit no registration of any desired pair ofsaid holes with a passage extending transversely through member 24whereby a pin 32 may be inserted therethrough to position plate 2'? at adesired angle relative to sole last 23.

An electrical heating element 33 is carried by the upper side of solelast 23, and has connection by means of a fitting 34 with a lead wire35, which may be connected to any source of power.

An auxiliary sole last 36 of any desired size and form is adapted tounderlie the sole last 23, and is provided at its upper side with anoff-.set pocket 37 into which the front end of last 23 may flt, asillustrated in Figure 6, to operatively position and secure said lasts23 and 36 together. I

An upper or toe last 38 is carried by the last 23, or by the last 36when the latter is used, and comprises a sheet of flexible material.bent to shape to conform with the inner shape of the toe portion of theupper of a shoe. An inwardly directed marginal flange 39 is formed inthe toe last, and in combination with the sides of the toe last formsmeans for receiving and retaining a wire spring member 40 normallytending to expand and extend the size and shape of the toe last. Thesole last fits into the toe last as illustrated in Figure 4.

The device is used as follows: The toe last 38 is inserted into the toeof the shoe to be repaired, and being normally flexible and alsoexpansible by reason of spring 40, fills out the toe of the shoe. Thesole last 23 is then inserted in the shoe within the toe last, and, ifthe toe last has not fully filled out the toe of the shoe or is not ofthe shape of the sole last, shapes said toe last as required.

The angular position of plate 27 relative to the sole last 23 is thenadjusted and maintained by the pin 32 at the angle which the shank ofthe shoe normally bears to the sole of the shoe.

The new sole is then cemented to the shoe, and the shoe and last areplaced on the flexible supporting member 20 carried by the supportingblock 11, the supporting member 20 and flexible plate 19 having beenflexed to conform to the curvature of the sole and instep of the shoe.The handwheel 18 is then actuated to bring threaded member 1'7 to bearon handle 25 and seat in recess 26 thereof, whereby pressure is appliedto the last and shoe. The pressure so applied to the last causes theflexible supporting member or pad 20 to slightly yield, as accommodatedby the air pocket 22 and illustrated in Figure 3, whereby a firm contactbetween the entire bot-. tom surface of the sole of shoe 21 and the pad20 is obtained. The heating element 33 is then energized to apply heatto set the sole cement. In the event the shoe being repaired is of asize different than or of a last different than the sole of the shoe islasted by the plate 27, while the new sole is being cemented to theshoe. In this way the shoe will retain its original shape after beingresoled, and will not be misshapen as is commonly the case when a shoeis resoled. Also,

the heating element is efiectively and conveniently positioned wherebyit may be easily applied to the sole last 23 in assembling the deviceand whereby its heat will be directly applied to the sole last 23 andthereby to the sole of the shoe. It will be observed further, that theposition of the heating element on the upper side of and spaced inwardlyof the outer edges of last 23 prevents direct contact thereof withflexible toe last.38 and insures an air space between said memberswhereby the detrimental effects of heat on the flexible toe last 38 areminimized. The air-pocketed construction of the rubber supporting pad 20permits it to have a firm supporting engagement with the entire bottomsurface of the sole of the shoe, and the flexibility of the supportingplate 19 permits the supporting member to have a complete supportingengagement with both the sole and shank of the shoe. Other advantageswill also be apparent from the foregoing description.

The invention having been set forth, what is claimed as new and usefulis:--

1. In combination, a plate shaped to form a sole last, a handle carriedby said sole last and having a transverse passage therethrough, a secondplate hinged to said sole last to form a shank last, a flange carried bysaid shank last and positioned adjacent said handle, said flange havinga plurality of spaced passages therethrough, and a pin inserted throughone of said flange passages and said handle passage to position saidshank last relative to said sole" last.

2. In combination, a plate shaped to form a sole last, a handleprojecting upwardly from said sole last and having a guideway formedtherein, a second plate shaped to form a shank last and hinged to saidsole last, a flange carried by said shank last and positioned in saidguideway, and means interengaging said flange .and handle to selectivelyposition said shank last relative to said sole last.

3. In combination, a plate shaped to form a sole last, a handleprojecting upwardly from said sole last, a second plate hinged tosaidsole last and shaped to form a shank last, a flange carried by saidshank last and positioned adjacent said handle, and means cooperatingwith said flange, and handle to selectively position said shank lastrelative to said sole last.

4. In combination, a plate shaped to form a sole last, a handleprojecting upwardly from said sole last, a second plate shaped to form ashank last hinged to said sole last, and means interconnecting saidshank last and handle to selectively position said shank last relativeto said sole last.

5. In combination, a plate' shaped to form a sole last, a second platehinged to said sole last to form a shank last, means 'angularlypositioning said shank last relative to said sole last, and a flexiblesheet bent to form a toe last, said sole last being inserted in andshaping said toe last.

JOE LIEBERMAN.

